OnTimeStats

Historical on-time performance

Denver to Cheyenne

90 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–CYS arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 736 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time72%
    Medianon time
    p9075 min
    Cancel1.1%
    Flights736

Why flights run late

Delay causes

  • Airline37%
  • Weather11%
  • Air traffic (NAS)11%
  • Late aircraft42%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DEN → CYS

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 77% to 80% on time.

  • Middays80% on time · p90 40 min · 835 flights
  • Overnights77% on time · p90 55 min · 932 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 81% on time.

  • Mondays81% on time · p90 35 min · 267 flights
  • Sundays80% on time · p90 35 min · 268 flights
  • Tuesdays79% on time · p90 65 min · 265 flights
  • Wednesdays78% on time · p90 40 min · 265 flights
  • Saturdays77% on time · p90 60 min · 191 flights · limited
  • Fridays77% on time · p90 45 min · 264 flights
  • Thursdays76% on time · p90 65 min · 263 flights
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.